Guardian Storage

Best Self-Storage Facility

Premier self-storage facility located in Helena Montana. We provided all customers the best secure state-of-the-art facility with a private gate access code (Rent Now) use our simple-to-use online software providing instant access.

Rent Storage

Why Use Guardian Storage?

Customer Service

It is our dedication to customer service. We are committed to offering you value for your hard earned money. Our on-site management team is ready to assist all customers.

Book and Pay Online

Our online storage management software is easy to use and has all the features for a rich interactive experience. We accept all major credit cards, Visa, Mastercard and Discover.

Reviews of Guardian Storage

Great customer service! I liked being able to get a storage unit online. We needed a unit asap, it was after 5pm. I looked this company up and we got one in minutes by signing up online. The storage unit was in great condition and location. I would rent from Guardian again. MORE REVIEWS

All the convenience and security features you need

24 Hour Access
Great Customer Service
Onsite Security
Digital Video Surveillance
Online Customer Management
Variety of unit sizes available
Drive-up Access
Variety of Sizes
Professional Management Team
New Location
Online Rent Payments
Auto Storage
Boat Storage
Business Storage
Rental Office

Available Storage Units

Select an available storage unit and receive instant access. 

10X5-Small Storage (10 x 5 x 7.5)

Store a couple of pieces of large furniture, up to 15 boxes, lawn mower, bicycle or motorcycle.

Starting at
$56.70 / month*

Waiting List

10X5-Small Storage (10 x 5 x 7.5)

Store a couple of pieces of large furniture, up to 15 boxes, lawn mower, bicycle or motorcycle.


12 Months for
$680.40
(10% Discount)

$56.70 / month

6 Months for
$359.10
(5% Discount)

$59.85 / month

1 Month for
$63.00

$63.00 / month

$25

The Reservation Deposit is the deposit amount needed to reserve a unit and the full amount will be credited back on the first rental invoice.

10x15-Mid Size Storage (10 x 15 x 7.5)

This unit can fit up-to three full bedrooms and larger items such as a piano, couches, tables, or large-screen TVs, plus several medium to large-sized boxes.

Starting at
$73.80 / month*

Waiting List

10x15-Mid Size Storage (10 x 15 x 7.5)

This unit can fit up-to three full bedrooms and larger items such as a piano, couches, tables, or large-screen TVs, plus several medium to large-sized boxes.


12 Months for
$885.60
(10% Discount)

$73.80 / month

6 Months for
$467.40
(5% Discount)

$77.90 / month

1 Month for
$82.00

$82.00 / month

$25

The Reservation Deposit is the deposit amount needed to reserve a unit and the full amount will be credited back on the first rental invoice.

10x20-Standard Storage (10 x 20 x 7.5)

Store belongings you may have in a two- or three-bedroom apartment or home. Can accommodate a compact car and some other mid-size vehicles.

Starting at
$84.59 / month*

10x20-Standard Storage (10 x 20 x 7.5)

Store belongings you may have in a two- or three-bedroom apartment or home. Can accommodate a compact car and some other mid-size vehicles.


12 Months for
$1,015.09
(10% Discount)

$84.59 / month

6 Months for
$535.74
(5% Discount)

$89.29 / month

1 Month for
$93.99

$93.99 / month

$25

The Reservation Deposit is the deposit amount needed to reserve a unit and the full amount will be credited back on the first rental invoice.

11x21 Secure Garage Style Storage (11 x 21 x 8)

Large drive up storage units. All units come with a secure gate access code and individual keys for entry door. The unit has a garage style entry door with cement floors, and sheetrocked. This space is ideal for customers that additional security, auto storage, residential storage, commercial storage and 6.5ft high entry doors.

Starting at
$94.50 / month*

11x21 Secure Garage Style Storage (11 x 21 x 8)

Large drive up storage units. All units come with a secure gate access code and individual keys for entry door. The unit has a garage style entry door with cement floors, and sheetrocked. This space is ideal for customers that additional security, auto storage, residential storage, commercial storage and 6.5ft high entry doors.


12 Months for
$1,134.00
(10% Discount)

$94.50 / month

6 Months for
$598.50
(5% Discount)

$99.75 / month

1 Month for
$105.00

$105.00 / month

$25

The Reservation Deposit is the deposit amount needed to reserve a unit and the full amount will be credited back on the first rental invoice.

10x25-Mid Size Storage (10 x 25 x 7.5)

Store belongings you may have in a two- or three-bedroom apartment or home. Can accommodate a compact car and some other mid-size vehicles.

Starting at
$95.40 / month*

Waiting List

10x25-Mid Size Storage (10 x 25 x 7.5)

Store belongings you may have in a two- or three-bedroom apartment or home. Can accommodate a compact car and some other mid-size vehicles.


12 Months for
$1,144.80
(10% Discount)

$95.40 / month

6 Months for
$604.20
(5% Discount)

$100.70 / month

1 Month for
$106.00

$106.00 / month

$25

The Reservation Deposit is the deposit amount needed to reserve a unit and the full amount will be credited back on the first rental invoice.

10x30-Large Storage (10 x 30 x 7.5)

Store furnishings you may have in a two- or three-bedroom apartment or home, boat, commercial trailor or most full size vehicles.

Starting at
$111.60 / month*

10x30-Large Storage (10 x 30 x 7.5)

Store furnishings you may have in a two- or three-bedroom apartment or home, boat, commercial trailor or most full size vehicles.


12 Months for
$1,339.20
(10% Discount)

$111.60 / month

6 Months for
$706.80
(5% Discount)

$117.80 / month

1 Month for
$124.00

$124.00 / month

$25

The Reservation Deposit is the deposit amount needed to reserve a unit and the full amount will be credited back on the first rental invoice.

10x40-Large Storage (10 x 40 x 7.5)

Storage for personal or commercial use, parking of vehicles, boats, trailers, and recreational vehicles

Starting at
$139.50 / month*

10x40-Large Storage (10 x 40 x 7.5)

Storage for personal or commercial use, parking of vehicles, boats, trailers, and recreational vehicles


12 Months for
$1,674.00
(10% Discount)

$139.50 / month

6 Months for
$883.50
(5% Discount)

$147.25 / month

1 Month for
$155.00

$155.00 / month

$25

The Reservation Deposit is the deposit amount needed to reserve a unit and the full amount will be credited back on the first rental invoice.


*Prices may reflect a discount from a longer term agreement.

The Best Self-Storage Facility

Guardian Storage Video Tour Here is a overview of Guardian Storage Helena MT.

Blog Posts

4 Ways Your Business Can Use Self-Storage

Published on 3/20/2018
4 Ways Your Business Can Benefit from a Self-Storage Unit in Helena MT.

How to Choose the Right Storage Unit Size

Published on 4/28/2017
It's important to choose the right size storage unit to avoid paying extra for space you don't need or worse: not having enough space for your belongings